Guest,
Guest, only for purposes of 24 CFR part 5, subparts A and I, and parts 882, 960, 966, and 982, means a person temporarily staying in the unit with the consent of a tenant or other member of the household who has express or implied authority to so consent on behalf of the tenant. The requirements of parts 966 and 982 apply to a guest as so defined.
Source
24 CFR § 5.100
Scoping language
The following definitions apply to this part and also in other regulations, as noted: